40Cr钢激光表面淬火显微组织分析
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摘要
进行了40Cr钢的激光表面淬火试验,观察分析了激光淬硬层的显微组织。试验结果表明:激光淬火预处理可在试验用钢40Cr表面获得0.55～0.65 mm的淬硬层深,激光淬硬层主要由完全淬火区、不完全淬火区与未淬火基材交界区组成。
The laser surface quenching test of 40Cr steel was carried out. The microstructure of laser hardened layer was observed and analyzed. The test results show that hardening layer depth of 0.55-0.65 mm is obtained on the surface of 40Cr steel by using laser quenching pretreatment. The laser hardening layer is mainly composed of complete quenched zone,incomplete quenched zone and the junction zone with non quenched substrate.
The laser surface quenching test of 40Cr steel was carried out. The microstructure of laser hardened layer was observed and analyzed. The test results show that hardening layer depth of 0.55-0.65 mm is obtained on the surface of 40Cr steel by using laser quenching pretreatment. The laser hardening layer is mainly composed of complete quenched zone,incomplete quenched zone and the junction zone with non quenched substrate.
引文
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[2]林成富,姚玉环,于润海.W18Cr4V钢激光表面淬火工艺参数的选择[J].佳木斯工学院学报,1997,15(2):127-130.
[3]韩彩霞.40Cr与QCr0.5的固态焊接接头显微组织分析[J].热加工工艺,2014,43(21):174-176.
[4]张柯柯,石红信,于华,等.QCr0.5中间层与表面激光改性后的40Cr钢超塑性连接[J].材料热处理学报,2008,29(6):163-167.
[5]Yu Z S,Wang F J,Li X Q,et al.Diffusion bonging of copper alloy to stainless steel with Ni and Cu interlayer[J].Trans.Nonferrous Met.Soc.China,2000,10(1):88-91.
[6]崔中圻.金属材料与热处理[M].北京:机械工业出版社,1988.
[7]Zhang K K,Yang Y L,Wang C S,et al.The superplastic solid-phase welding of 40Cr-T10A steel[J].Journal of Materials Science&Technology,2001,17(1):189-190.
[8]刘文今,钟敏霖.渗碳淬火零件表面激光合金化后的组织特性研究[J].中国表面工程,2001,14(1):36-39.
[9]Malin V.Development of solidification welding for depositing non-ferrous alloys on to steel[J].Weld Journal,1992,71(5):35-36.
[10]Maehara Y,Komizo Y,Langdon T G.Principles of superplastic diffusion bonding[J].Materials Science and Technology,1988,14(4):669-674.